CN205039248U - GNSS signal reception antenna - Google Patents
GNSS signal reception antenna Download PDFInfo
- Publication number
- CN205039248U CN205039248U CN201520811757.9U CN201520811757U CN205039248U CN 205039248 U CN205039248 U CN 205039248U CN 201520811757 U CN201520811757 U CN 201520811757U CN 205039248 U CN205039248 U CN 205039248U
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- China
- Prior art keywords
- pattern
- antenna
- gnss signal
- signal reception
- reception antenna
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/247—Supports; Mounting means by structural association with other equipment or articles with receiving set with frequency mixer, e.g. for direct satellite reception or Doppler radar
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/061—Two dimensional planar arrays
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
- H01Q9/40—Element having extended radiating surface
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The utility model discloses a GNSS signal reception antenna, its antenna element's radiation pattern includes four sub - patterns that enclose into the rectangle, every the subgraph case is including the first portion, second portion and the third part that communicate each other, the first portion with second portion intercommunication, second portion be for the partial intercommunication of third, the first portion is setting up and the same rectangle of shape for the second portion symmetry with the third part, the lateral part of the tip of the third of every subgraph case part and the first portion of adjacent next subgraph case is relative set up so that four sub - patterns enclose into the rectangle shape, and do not feed through each other between four sub - images. From this, can also can receive levogyration circle polarization signal so that GNSS signal reception antenna both can receive the right hand circular polarization signal. Simultaneously, when using a plurality of antenna element to constitute array antenna, can carry out the directional reception to the GNSS signal.
Description
Technical field
The utility model relates to Electromagnetic Field and Microwave Technology field, is specifically related to a kind of GNSS signal reception antenna.
Background technology
GLONASS (Global Navigation Satellite System) (GlobalNavigationSatelliteSystem, GNSS) all satellite navigation systems are referred to, comprise the whole world, region with strengthen, as the Galileo in the GPS of the U.S., Muscovite Glonass, Europe, the Beidou satellite navigation system of China, and relevant enhancing system.
GNSS antenna, be mainly used in doing to launch or reception antenna use with frequency repeater system, antenna is made up of parts such as radome, associated microstrip radiating element, base plate and high frequency output sockets, makes reception antenna use for GPS navigation, navigation system.Now conventional GNSS reception diagram achieves hemispherical radiation substantially.Existing GNSS reception antenna is omnidirectional antenna, and only can receive right-handed circular polarization signal.
Utility model content
In view of this, the utility model provides a kind of GNSS signal reception antenna, both can be formed as omnidirectional antenna and also can be formed as directional antenna, and both can receive traditional right-handed circular polarization signal, also can receive left-hand circular polarization signal.
GNSS signal reception antenna of the present utility model comprises:
At least one antenna element, wherein, described antenna element comprises: substrate; Radiation pattern, is formed in the first surface of described substrate, comprises four sub pattern surrounding rectangular shape; And feed pattern, is formed in second of described substrate;
Low noise amplifier, is connected with the feed pattern of described antenna element;
Wherein, each described sub pattern comprises the Part I, Part II and the Part III that are interconnected; Described Part I is communicated with described Part II, and Part II is communicated with relative to Part III, and described Part I and Part III are be symmetrical arranged relative to Part II and the identical rectangle of shape; The sidepiece of the end of the Part III of each sub pattern and the Part I of adjacent next sub pattern is oppositely arranged to make described four sub pattern surround rectangular shape, and is not mutually communicated with between four subgraphs.
Preferably, described Part II is rectangle.
Preferably, the width of described Part II is less than the width of described Part I and Part III.
Preferably, the axis of the Part I of described sub pattern, Part II and Part III linearly arranges.
Preferably, described feed pattern is arranged at position corresponding below the Part I of each sub pattern at least partly.
Preferably, described sub pattern is pierced pattern, and described feed pattern is conductive pattern.
Preferably, described antenna comprises a described antenna element, is omnidirectional antenna.
Preferably, described antenna comprises the antenna element of four array way arrangements, is directional antenna.
By radiation pattern being set to four sub pattern surrounding rectangular shape, and each end of sub pattern Part III and the sidepiece of Part I are oppositely arranged and make antenna both can receive traditional right-handed circular polarization signal, also left-hand circular polarization signal can be received, and can be arranged so that antenna has great directivity by antenna unit array, networking can be carried out, to adapt to the different high-tech requirements that GNSS signal receives process according to phased array sequence requirements.
Accompanying drawing explanation
By referring to the description of accompanying drawing to the utility model embodiment, above-mentioned and other objects, features and advantages of the present utility model will be more clear, in the accompanying drawings:
Fig. 1 is the end view of the GNSS signal reception antenna of the utility model first embodiment;
Fig. 2 is the schematic diagram of the antenna element of the utility model embodiment;
Fig. 3 is the radiation pattern schematic diagram of the antenna element of the utility model embodiment;
Fig. 4 is the frequency characteristic figure of the antenna element of the utility model embodiment;
Fig. 5 a-Fig. 5 c is the directional diagram of the GNSS signal reception antenna of the utility model first embodiment;
Fig. 6 is the front view of the GNSS signal reception antenna of the utility model second embodiment;
Fig. 7 is the end view of the GNSS signal reception antenna of the utility model second embodiment;
Fig. 8 is the frequency characteristic figure of the antenna element of the utility model embodiment
Fig. 9 a-Fig. 9 c is the directional diagram of the GNSS signal reception antenna of the utility model second embodiment.
Embodiment
Based on embodiment, the utility model is described below, but the utility model is not restricted to these embodiments.In hereafter details of the present utility model being described, detailedly describe some specific detail sections.Do not have the description of these detail sections can understand the utility model completely for a person skilled in the art yet.In order to avoid obscuring essence of the present utility model, known method, process, flow process, element and circuit do not describe in detail.
In addition, it should be understood by one skilled in the art that the accompanying drawing provided at this is all for illustrative purposes, and accompanying drawing is not necessarily drawn in proportion.
Unless the context clearly requires otherwise, similar words such as " comprising ", " comprising " otherwise in whole specification and claims should be interpreted as the implication that comprises instead of exclusive or exhaustive implication; That is, be the implication of " including but not limited to ".
In description of the present utility model, it is to be appreciated that term " first ", " second " etc. are only for describing object, and instruction or hint relative importance can not be interpreted as.In addition, in description of the present utility model, except as otherwise noted, the implication of " multiple " is two or more.
Fig. 1 is the end view of the GNSS signal reception antenna of the utility model first embodiment.
As shown in Figure 1, the GNSS signal reception antenna of the present embodiment comprises an antenna element 1, low noise amplifier 2 and support component 3.
Fig. 2 is the schematic diagram of the antenna element of the utility model embodiment.Fig. 3 is the radiation pattern schematic diagram of the antenna element of the utility model embodiment.
As shown in Figures 2 and 3, antenna element 1 comprises substrate 11, radiation pattern 12 and feed pattern 13.Wherein, substrate 11 can be formed by being generally the material such as pottery, FR-4 material, polytetrafluoroethylene, epoxy resin, silicon dioxide.Radiation pattern 12 is formed in the first surface of described substrate 11, and it comprises four sub pattern 121,122,123 and 124 surrounding rectangular shape.
Wherein, each described sub pattern comprises the Part I a, Part II b and the Part III c that are interconnected.Described Part I a is communicated with described Part II b, and Part II b is communicated with Part III c, and described Part I a and Part III c are symmetrical arranged relative to Part II b and the identical rectangle of shape.The axis of Part I a, Part II b and Part III c linearly arranges.In the present embodiment, Part II b is also formed as rectangle, and its width is less than Part I a and Part III c, thus makes sub pattern 121-124 be formed as the dumbbell shaped pattern be made up of rectangle respectively.Sub pattern 121-124 is that hollow out forms pattern on conductive material layer in the present embodiment.Described electric conducting material can be the conductive metal material such as gold, silver, copper also can be the oxide conducting materials such as ITO.
On mutual alignment is arranged, four sub pattern 121-124 surround rectangle in a looping fashion.Particularly, the part of side near end of the sub pattern that a side end of a sub pattern is adjacent with the next one is oppositely arranged.
More specifically, the sidepiece a1 of the end c1 of the Part III c of each sub pattern and the Part I a of adjacent next sub pattern is oppositely arranged to make described four sub pattern surround rectangular shape, and is not mutually communicated with between four sub pattern.
The antenna element formed thus both can receive right-handed circular polarization signal, also can receive left-hand circular polarization signal.Thus, the GNSS signal reception antenna of the present embodiment forms GNSS-R reception antenna or GNSS-L reception antenna by the antenna element described in.
Meanwhile, feed pattern 13 is arranged on relative with first surface on the substrate 11 second.At least comprise the conductive pattern of the position of the correspondence of the Part I a being positioned at each sub pattern.
Low noise amplifier 2 conducts electricity with described feed pattern 13 and is connected, and receives the GNSS electromagnetic signal received via radiation pattern, is transferred in the signal processing system be connected with described GNSS reception antenna after amplifying.Preferably, described low noise amplifier 2 can for adopting the low noise amplifier of SMA interface.
Described bracing or strutting arrangement 3 is for the carrier as the described antenna element 1 of installation and low noise amplifier 2, and described low noise amplifier 2 is arranged on the side of described bracing or strutting arrangement 3, and antenna element 1 is arranged on the installed surface of bracing or strutting arrangement 3 correspondence in the mode of insulation.Described bracing or strutting arrangement 3 can adopt aluminum alloy materials to make.
In a preferred embodiment, the index of described antenna element is as follows:
1) frequency range (FrequencyRange): GPSL1/L2, BD2B1/B2/B3
2) impedance (Impedance): 50 Ω
4) antenna axial ratio (AxialRatio) :≤3dB
5) standing wave (VSWR) is exported :≤1.5
6) interface: SMA
The size of antenna element can be 280mm*280mm*53mm, and quantity is 1.
2 indexs adopted of low noise amplifier are as follows:
1) frequency range (FrequencyRange): GPSL1/L2, BD2B1/B2/B3
2) gain (LNAGain): >=40dB
3) noise factor (NoiseFigure) :≤2.0dB
4) standing wave (VSWRo) is exported :≤2.0
5) inband flatness: ± 2dB
6) operating voltage (OperationVoltage): 5VDC
7) operating current (OperationCurrent) :≤60mA5V
8) interface: SMA.
Accordingly, for the GNSS signal reception antenna adopting These parameters, as shown in Figure 4, the directional diagram that its antenna measurement obtains as illustrated in figs. 5 a-5 c for the frequecy characteristic figure of its S11 port.Wherein, the electromagnetic wave of Fig. 5 a to be antenna for frequency be 1.19G hertz is at the directional diagram of main polarization direction wave and cross polarization direction wave; The electromagnetic wave of Fig. 5 b to be antenna for frequency be 1.26G hertz is at the directional diagram of main polarization direction wave and cross polarization direction wave; The electromagnetic wave of Fig. 5 c to be antenna for frequency be 1.575G hertz is at the directional diagram of main polarization direction wave and cross polarization direction wave.According to Fig. 5 a-Fig. 5 c, in above-mentioned frequency range, the antenna of the present embodiment all can have larger gain in all directions to main polarization direction wave, suppresses the impact of cross polarization wave simultaneously.
Thus, the present embodiment is by being set to four sub pattern surrounding rectangular shape by radiation pattern, and each end of sub pattern Part III and the sidepiece of Part I are oppositely arranged thus obtain omnidirectional's GNSS signal reception antenna, make antenna both can receive traditional right-handed circular polarization signal, also can receive left-hand circular polarization signal.
Fig. 6 and Fig. 7 is front view and the end view of the GNSS signal reception antenna of the utility model second embodiment respectively.
As shown in Figure 6 and Figure 7, the GNSS signal reception antenna of the present embodiment comprises antenna element 1a-1d, low noise amplifier 2 and the support component 3 that 4 array way are arranged.In the present embodiment, antenna element 1a-1d forms the array antenna that two row two arrange.
The radiation pattern of each antenna element 1a-1d is identical with the first embodiment with the set-up mode of feed pattern, does not repeat them here.It should be noted that, in the present embodiment, the radiation pattern of antenna element 1a-1d and feed pattern can be formed on same substrate, and also, four antenna element 1a-1d share same substrate.Alternatively, the radiation pattern of antenna element 1a-1d and feed pattern also can be formed on different substrates, and such as, each antenna element uses independently substrate.
Low noise amplifier 2 can be arranged on the side of support component 3, and the signal received by antenna element 1a-1d is drawn.
By using the antenna element of multiple array arrangement, the directivity of antenna can be adjusted by the signal feed phase place adjustment received by different antennae unit, thus the GNSS signal reception antenna of the present embodiment can realize directional characteristic, directionally receives GNSS signal.For the GNSS signal reception antenna of the present embodiment, as shown in Figure 8, the directional diagram that its antenna measurement obtains as shown in figures 9 a-9 c for the frequecy characteristic figure of its S11 port.Wherein, the electromagnetic wave of Fig. 9 a to be antenna for frequency be 1.19G hertz is at the directional diagram of main polarization direction wave and cross polarization direction wave; The electromagnetic wave of Fig. 9 b to be antenna for frequency be 1.26G hertz is at the directional diagram of main polarization direction wave and cross polarization direction wave; The electromagnetic wave of Fig. 9 c to be antenna for frequency be 1.575G hertz is at the directional diagram of main polarization direction wave and cross polarization direction wave.According to Fig. 9 a-Fig. 9 c, in above-mentioned frequency range, the antenna of the present embodiment all can have larger gain in principal direction to main polarization direction wave, suppresses the impact of cross polarization wave simultaneously, has good directivity.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, to those skilled in the art, the utility model can have various change and change.All do within spirit of the present utility model and principle any amendment, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (8)
1. a GNSS signal reception antenna, comprising:
At least one antenna element, wherein, described antenna element comprises: substrate; Radiation pattern, is formed in the first surface of described substrate, comprises four sub pattern surrounding rectangular shape; And feed pattern, is formed in second of described substrate;
Low noise amplifier, is connected with the feed pattern of described antenna element;
Wherein, each described sub pattern comprises the Part I, Part II and the Part III that are interconnected; Described Part I is communicated with described Part II, and Part II is communicated with relative to Part III, and described Part I and Part III are be symmetrical arranged relative to Part II and the identical rectangle of shape; The sidepiece of the end of the Part III of each sub pattern and the Part I of adjacent next sub pattern is oppositely arranged to make described four sub pattern surround rectangular shape, and is not mutually communicated with between four subgraphs.
2. GNSS signal reception antenna according to claim 1, is characterized in that, described Part II is rectangle.
3. GNSS signal reception antenna according to claim 2, is characterized in that, the width of described Part II is less than the width of described Part I and Part III.
4. GNSS signal reception antenna according to claim 1, is characterized in that, the axis of the Part I of described sub pattern, Part II and Part III linearly arranges.
5. GNSS signal reception antenna according to claim 1, is characterized in that, described feed pattern is arranged at position corresponding below the Part I of each sub pattern at least partly.
6. the GNSS signal reception antenna according to any one of claim 1-5, is characterized in that, described sub pattern is pierced pattern, and described feed pattern is conductive pattern.
7. the GNSS signal reception antenna according to any one of claim 1-5, is characterized in that, described antenna comprises a described antenna element, is omnidirectional antenna.
8. the GNSS signal reception antenna according to any one of claim 1-5, is characterized in that, described antenna comprises the antenna element of four array way arrangements, is directional antenna.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520811757.9U CN205039248U (en) | 2015-10-19 | 2015-10-19 | GNSS signal reception antenna |
| PCT/CN2015/094524 WO2017067032A1 (en) | 2015-10-19 | 2015-11-13 | Gnss signal receiving antenna |
| US15/954,113 US20180233809A1 (en) | 2015-10-19 | 2018-04-16 | Gnss signal receiving antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520811757.9U CN205039248U (en) | 2015-10-19 | 2015-10-19 | GNSS signal reception antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205039248U true CN205039248U (en) | 2016-02-17 |
Family
ID=55298120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520811757.9U Active CN205039248U (en) | 2015-10-19 | 2015-10-19 | GNSS signal reception antenna |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20180233809A1 (en) |
| CN (1) | CN205039248U (en) |
| WO (1) | WO2017067032A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109037937A (en) * | 2018-08-06 | 2018-12-18 | 北方工业大学 | Wide-beam circularly polarized antenna applied to satellite positioning |
| CN110752442A (en) * | 2019-10-16 | 2020-02-04 | 西安空间无线电技术研究所 | Wide-beam low-width-angle-to-axis-ratio circularly polarized antenna unit and radiation method thereof |
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| US5786793A (en) * | 1996-03-13 | 1998-07-28 | Matsushita Electric Works, Ltd. | Compact antenna for circular polarization |
| TR199900346T1 (en) * | 1997-06-18 | 1999-09-21 | Kyocera Corporation | Geni� a��l� dairesel polarization antenna. |
| US20030201939A1 (en) * | 2002-04-29 | 2003-10-30 | Reece John K. | Integrated dual or quad band communication and GPS band antenna |
| US7164385B2 (en) * | 2005-06-06 | 2007-01-16 | Receptec Holdings, Llc | Single-feed multi-frequency multi-polarization antenna |
| EP1744399A1 (en) * | 2005-07-12 | 2007-01-17 | Galileo Joint Undertaking | Multi-band antenna for satellite positioning system |
| JP4735368B2 (en) * | 2006-03-28 | 2011-07-27 | 富士通株式会社 | Planar antenna |
| KR100917847B1 (en) * | 2006-12-05 | 2009-09-18 | 한국전자통신연구원 | Omni-directional planar antenna |
| US7427957B2 (en) * | 2007-02-23 | 2008-09-23 | Mark Iv Ivhs, Inc. | Patch antenna |
| EP2458680B1 (en) * | 2009-09-10 | 2016-07-27 | Delphi Delco Electronics Europe GmbH | Antenna for receiving circular polarised satellite radio signals |
| WO2011053107A1 (en) * | 2009-10-30 | 2011-05-05 | Laird Technologies, Inc. | Omnidirectional multi-band antennas |
| EP2529448B1 (en) * | 2010-01-29 | 2014-12-31 | Orban Microwave Products (OMP) N.V. | Circularly polarized antenna and feeding network |
| KR101872460B1 (en) * | 2011-01-27 | 2018-06-29 | 갈트로닉스 코포레이션 리미티드 | Broadband dual-polarized antenna |
| JP5463577B2 (en) * | 2012-03-16 | 2014-04-09 | 株式会社Ｎｔｔドコモ | Dual antenna device |
| US9647338B2 (en) * | 2013-03-11 | 2017-05-09 | Pulse Finland Oy | Coupled antenna structure and methods |
| BR112015024425A2 (en) * | 2013-04-25 | 2017-07-18 | Ericsson Telefon Ab L M | sky spider roofing knot |
| CN103326132A (en) * | 2013-05-22 | 2013-09-25 | 北京航空航天大学 | Sixteen-unit micro-strip array antenna capable of carrying out power equal-division rotating feed |
| JP6402962B2 (en) * | 2013-07-17 | 2018-10-10 | パナソニックＩｐマネジメント株式会社 | High frequency module |
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| CN103606756A (en) * | 2013-10-25 | 2014-02-26 | 深圳市摩天射频技术有限公司 | Small circularly-polarized antenna |
| US9793963B2 (en) * | 2013-11-27 | 2017-10-17 | Avago Technologies General Ip (Singapore) Pte. | Integrated circuit with antenna arrays and methods for use therewith |
| IL231026B (en) * | 2014-02-18 | 2018-07-31 | Mti Wireless Edge Ltd | Wideband dual-polarized patch antenna array and methods useful in conjunction therewith |
-
2015
- 2015-10-19 CN CN201520811757.9U patent/CN205039248U/en active Active
- 2015-11-13 WO PCT/CN2015/094524 patent/WO2017067032A1/en active Application Filing
-
2018
- 2018-04-16 US US15/954,113 patent/US20180233809A1/en not_active Abandoned
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109037937A (en) * | 2018-08-06 | 2018-12-18 | 北方工业大学 | Wide-beam circularly polarized antenna applied to satellite positioning |
| CN110752442A (en) * | 2019-10-16 | 2020-02-04 | 西安空间无线电技术研究所 | Wide-beam low-width-angle-to-axis-ratio circularly polarized antenna unit and radiation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017067032A1 (en) | 2017-04-27 |
| US20180233809A1 (en) | 2018-08-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 1403 room 200081, building 1000, Yongxing Road, Pinghu economic and Technological Development Zone, Jiaxing, Zhejiang Patentee after: Ye Lei Address before: 200081 room 5, Lane 65, Lane 502, Hongkou District East Sports Club, Shanghai, China Patentee before: Ye Lei |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20171207 Address after: 518131 Hengrun small residence 640-1 room in Longhua District, Shenzhen, Guangdong Patentee after: Pan-Pacific communication navigation (Shenzhen) Co. Ltd. Address before: 1403 room 200081, building 1000, Yongxing Road, Pinghu economic and Technological Development Zone, Jiaxing, Zhejiang Patentee before: Ye Lei |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180806 Address after: 314000 room 1403, Jing Kai building, 1000 Yongxing Road, Pinghu economic and Technological Development Zone, Jiaxing, Zhejiang. Patentee after: Ye Lei Address before: 518131 Hengrun street, 640-1 street, min Zhi street, Longhua District, Shenzhen, Guangdong. Patentee before: Pan-Pacific communication navigation (Shenzhen) Co. Ltd. |